Acute gastritis, compared to chronic gastritis, has a shorter course and more severe symptoms. If the condition is not very severe, it can also be treated by taking oral medication. For example, oral proton pump inhibitors, gastrointestinal motility drugs, and mucosal protective agents, etc. If the symptoms are more severe, such as severe vomiting, intravenous fluid therapy can be administered to achieve treatment goals. The effects of intravenous fluid therapy are basically similar to those of oral medications. If the inflammation is apparent, antibiotics can be appropriately used. As for the duration of medication, generally three to five days are sufficient. If these acute gastric mucosal lesions occur, the symptoms are relatively more severe, and there may be bleeding. In such cases, the duration of intravenous fluid therapy can be appropriately extended, generally not exceeding one week.